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Ed Hartnett wrote:
Jeff Whitaker <jswhit@xxxxxxxxxxx> writes:Ed: The attached C program creates a netcdf4_classic file that is unreadable (ncdump'ing it gives an 'HDF Error'). [ ..SNIP..]Thanks Jeff! This is not an ncdump bug; nc_open fails on this file! I have added it to the netCDF-4 tests and will let you know when I get it solved... Thanks, Ed
Ed: Here's a C program that triggers the H5Oalloc error I mentioned in my previous message.
-Jeff -- Jeffrey S. Whitaker Phone : (303)497-6313 Meteorologist FAX : (303)497-6449 NOAA/OAR/PSD R/PSD1 Email : Jeffrey.S.Whitaker@xxxxxxxx 325 Broadway Office : Skaggs Research Cntr 1D-124 Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg
#include <stdio.h>
#include <stdlib.h>
#include <netcdf.h>
void
check_err(const int stat, const int line, const char *file) {
if (stat != NC_NOERR) {
(void) fprintf(stderr, "line %d of %s: %s\n", line, file,
nc_strerror(stat));
exit(1);
}
}
int
main() { /* create testfile.nc */
int stat; /* return status */
int ncid; /* netCDF id */
/* dimension ids */
int lat_dim;
int time_dim;
int lon_dim;
/* dimension lengths */
size_t lat_len = 73;
size_t time_len = 10;
size_t lon_len = 145;
/* variable ids */
int wind_id;
/* rank (number of dimensions) for each variable */
# define RANK_wind 1
/* variable shapes */
int wind_dims[RANK_wind];
/* attribute vectors */
int wind_slobber[1];
int cdf_goober[1];
stat = nc_set_default_format(NC_FORMAT_NETCDF4, NULL);
check_err(stat,__LINE__,__FILE__);
/* define dataset */
stat = nc_create("testfile.nc", NC_CLOBBER, &ncid);
check_err(stat,__LINE__,__FILE__);
/* define dimensions */
stat = nc_def_dim(ncid, "lon", lon_len, &lon_dim);
check_err(stat,__LINE__,__FILE__);
stat = nc_def_dim(ncid, "lat", lat_len, &lat_dim);
check_err(stat,__LINE__,__FILE__);
stat = nc_def_dim(ncid, "time", time_len, &time_dim);
check_err(stat,__LINE__,__FILE__);
stat = nc_put_att_text(ncid, NC_GLOBAL, "foo", 3, "bar");
check_err(stat,__LINE__,__FILE__);
cdf_goober[0] = 2;
stat = nc_put_att_int(ncid, NC_GLOBAL, "goober", NC_INT, 1, cdf_goober);
check_err(stat,__LINE__,__FILE__);
/* define variables */
wind_dims[0] = lon_dim;
stat = nc_def_var(ncid, "temp", NC_FLOAT, RANK_wind, wind_dims, &wind_id);
check_err(stat,__LINE__,__FILE__);
stat = nc_put_att_text(ncid, wind_id, "bar", 3, "foo");
check_err(stat,__LINE__,__FILE__);
wind_slobber[0] = 3;
stat = nc_put_att_int(ncid, wind_id, "slobber", NC_INT, 1, wind_slobber);
check_err(stat,__LINE__,__FILE__);
stat = nc_close(ncid);
check_err(stat,__LINE__,__FILE__);
/* re-open dataset*/
stat = nc_open("testfile.nc", NC_WRITE, &ncid);
check_err(stat,__LINE__,__FILE__);
stat = nc_inq_dimid(ncid, "lon", &lon_dim);
check_err(stat,__LINE__,__FILE__);
/* rename dimension */
stat = nc_rename_dim(ncid, lon_dim, "longitude");
check_err(stat,__LINE__,__FILE__);
stat = nc_inq_varid(ncid, "temp", &wind_id);
check_err(stat,__LINE__,__FILE__);
/* rename variable */
stat = nc_rename_var(ncid, wind_id, "wind");
check_err(stat,__LINE__,__FILE__);
stat = nc_close(ncid);
check_err(stat,__LINE__,__FILE__);
return 0;
}
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